Relays consist of a solenoid which can be driven from a smaller signal to make a physical connection between switch contacts.
Modules
Sometimes relays can have weird footprints, or require some extra components to interface with a microcontroller, that's what relay modules are for!
5V Single Channel Relay Module 10AA versatile, compact relay board that can drive up to 10A @28VDC while only drawing approximately 60mA at 5V.
- 5V 4 Channel Relay Module 10AA versatile relay board with opto-isolated inputs. Each channel can drive up to 10A @28VDC
- 5V 2 Channel Relay Module 10ASKU: CE05114 Brand: Core ElectronicsA versatile relay board with opt-isolated inputs. Each channel can drive up to 10A @28VDC
- 3 Channel Relay Module Shield Smart Home for Raspberry PiSKU: CE04864 Brand: WavesharePerfect for simple home-automation projects, this module allows your Raspberry Pi to control three independent relays, allowing you to easily control high-current loads while keeping your Pi safely isolated. All the necessary driver circuitry is on-board, and control is as simple as driving a GPIO pin high or low
Solid State Relays
Solid state relays use special electronics components to create the same functionality of a relay but without the electromechanical components.
- 1 Channel Solid State Relay Module (DC Control, AC Load)SKU: CE05352 Brand: Core Electronics
This breakout module gives you access to a single channel solid state relay that can be switched with 3-5VDC
- 2 Channel Solid State Relay Module (DC Control, AC Load)SKU: CE05347 Brand: Core Electronics
This breakout module gives you access to a 2 channel solid state relay that can be switched with 3-5VDC
- 4 Channel Solid State Relay Module (DC Control, AC Load)SKU: CE05340 Brand: Core Electronics
This breakout module gives you access to a 4 channel solid state relay that can be switched with 3-5VDC
- 8 Channel Solid State Relay Module (DC Control, AC Loads)SKU: CE05343 Brand: Core Electronics
This breakout module gives you access to a 8 channel solid state relay that can be switched with 3-5VDC
- SSR-60DA Solid State RelaySKU: CE05351 Brand: Core Electronics
A solid state relay (SSR) allows you to control high-current AC loads from lower voltage DC control circuitry...
- Solid State Relay - 40A (3-32V DC Input)SKU: COM-13015 Brand: SparkfunA solid state relay (SSR) allows you to control high-curent AC loads from lower voltage DC control circuitry. Solid state relays have several advantages over mechanical relays. One such advantage is that they can be switched by a much lower voltage and at a much lower current than most mechanical relays. Also, because there’s no moving contacts, solid state relays can be switched much faster and for much longer periods without wearing out.
Standalone Relays
Want to get breadboarding with relays, or perhaps need some for your PCB project? We've got a couple of barebones relay options just for you.
- Relay SPDT SealedThese are high quality Single Pole - Double Throw (SPDT) sealed relays. Use them to switch high voltage, and/or high current devices.
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